"If I had the AF-S DX 16-85mm lens I would team it with the AF-S 70-300mm VR lens and the AF-S DX 35mm lens."
I'd probably go this route if I were buying. Granted I've only used the 35mm1.8 and the 70-300mm but from what I understand, the 16-85 is better optically than the 18-200mm. In fact all three of the above lenses would be a great choice. I'm not going to go into price because if you're considering this as an option, obviously you're able to afford it. Therefore, I say go for the three lens option as, although you will have to change lenses, you'll likely get better results. Many have said get better lenses and these are said to be better and I can attest to two of them.